Biotechnology: Principles and Processes — BIOLOGY STD 12 Science — Question

How much of carbon is fixed in the biosphere through photosynthesis annually?

Mention any two ways in which single nucleotide polymorphism (SNPs) identified in human genome, can bring out revolutionary changes in biological and medical sciences?

The egg of an animal contains 10 chromosomes, of which one is X–chromosome. How many autosomes would there be in the karyotype of this animal?

Name the ancestor of Homo habilis.

Name the first restriction endonuclease discovered.

What are true-breeding lines that are used to study inheritance pattern of traits in plants?

Fill in the blanks:
The process of release of ovum from a mature follicle is called _____________.

Mention how do bears escape from stressful time in winter.

Why have Western Ghats in India been declared as biological hot spots?

Write the names of two main groups of cells required to achieve specific immunity.